DBS3900.pdf

eWBB TDD 3.0 DBS3900

Product Description

Issue

01

Date

2012-09-30

HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2012. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.

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Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied. The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute the warranty of any kind, express or implied.

Huawei Technologies Co., Ltd. Address:

Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China

Website:

http://www.huawei.com

Email:

[email protected]

Issue 01 (2012-09-30)

Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

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eWBB TDD 3.0 DBS3900 Product Description

Contents 1 Positioning and benifits .............................................................................................................. 1 1.1 Positioning ....................................................................................................................................................... 1 1.2 Benefits ............................................................................................................................................................ 2

2 Architecture ................................................................................................................................... 3 2.1 Overview ........................................................... .............................................................. ................................ 3 2.2 Basic Module ................................................................................................................................................... 3 2.2.1 eBBU530 ................................................................................................................................................ 3 2.2.2 RRU ........................................................................................................................................................ 5 2.3 Auxiliary Devices .......................................................... .............................................................. ..................... 8 2.3.1 Advanced Power Module(APM) 30H ........................................................................................... .......... 8 2.3.2 Transmission Cabinet(TMC11H) ......................................................... ................................................... 9 2.3.3 Integrated Battery Backup System(IBBS200D/IBBS200T) ................................................................. 10 2.3.4 Indoor Mini Box(IMB03) ..................................................................................................................... 11 2.3.5 Outdoor Mini Box(OMB) ..................................................................................................................... 11 2.4 Typical Installation Scenarios for the DBS3900 ........................................... ................................................. 12

3 Typical Configurations .............................................................................................................. 14 4 Technical Specifications ............................................................................................................ 15 4.1 Capacity Specifications ........................................................... ............................................................... ........ 15 4.2 Device Specifications ............................................................... .............................................................. ........ 15 4.3 Input power and clock synchronization specifications ..................................................... .............................. 17 4.4 Reliability Specifications ............................................................................................................................... 17 4.5 Compliance Standard ..................................................................................................................................... 17

5 Abbreviation ................................................................................................................................19

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1

Positioning and benifits

Long Term Evolution (LTE) is an evolved telecom standard. It provides various technical benefits, such as, reduced service delay, higher user data rates, increased spectral efficiency, optimized support for packet services, improved system capacity and coverage. LTE has flexible bandwidths, enhanced modulation schemes, and effective scheduling, which can fufil the wireless Broad-Band communication requirements from different Enterprises.

1.1 Positioning Focusing on customer-oriented innovation,Huawei launches this eNodeB solutionDBS3900. The DBS3900 fully utilizes Huawei platform resources and uses a variety of technologies to meet the challenges of mobile network development. The eNodeB is used for radio access in the LTE system. The eNodeB mainly performs Radio Resource Management (RRM) functions such as air interface management, access control, mobility control, and User Equipment (UE) resource allocation. Multiple eNodeBs constitute an E-UTRAN(Evolved Universal Terrestrial Radio Access Network) system. The DBS3900 has only two types of basic modules: baseband unit and remote radio unit, which can be flexibly configured to meet requirements in different capability and different usage scenarios. The DBS3900 has the features such as small size, low power consumption, flexible installation and easy site deployment. Figure 1-1 shows a usage scenario of the DBS3900.

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Figure 1-1 a usage scenario of the DBS3900

1.2 Benefits Diverse Usage Scenarios and RRU Types for Different Enterprise Network Deployment Requirements The DBS3900 supports main LTE TDD frequency bands and special industry TDD frequency(the frequency of 1.8G and 1.4G). Remote radio unit(RRU) are characterized by their support for various bandwidths, great transmit (TX) power, and high power amplification efficiency.

Flexible Installation for Fast Network Deployment with a Low TCO 

Flexible installation of the DBS3900 simplifies site acquisition and achieves fast network deployment with a low total cost of ownership (TCO). The eBBU530 can be installed on an indoor wall or in a standard cabinet. This reduces the installation investment. The RRU can be mounted onto a pole, tower, or concrete wall. Flexible installation locations and low space requirements reduce site lease costs. The RRU can also be installed close to the antenna system to reduce the cost of feeders and power consumption.



DBS3900 provided Various transmission ports to support Internet Protocol (IP) transport. Multiple Quality of Service (QoS) mechanisms are applied to guarantee the goal of Qos, which provide high capacity, implement differentiated services, and meet the QoS requirements of services.

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2

Architecture

2.1 Overview The DBS3900 features a distributed architecture. The DBS3900 has two types of basic modules: eBBU530(BaseBand control Unit) and RRU(Remote Radio Unit). The eBBU530 and RRU are connected using fiber optic cables through common public radio interface (CPRI) ports to transmit CPRI signals. This kind of architecture satisfy the requirements of setting up Enterprise wireless communication network. Auxiliary devices of the DBS3900 are the advanced power module with heat-exchanger (APM30H), Integrated Battery Backup System with direct cooler (IBBS200D) or Integrated Battery Backup System with t hermoelectric cooling unit (IBBS200T), transmission cabinet with heat-exchanger (TMC11H), Indoor Mini Box (IMB03), and Outdoor Mini Box (OMB). Flexible combinations of the basic modules and auxiliary devices can provide diverse site solutions.

2.2 Basic Module 2.2.1 eBBU530 The eBBU530, a baseband unit, performs the following functions: 

Provides ports for connection to the Mobility Management Entity (MME) or Serving Gateway (S-GW) and processes related transmission protocols.



Provides CPRI ports for communication with RRUs and processes uplink and downlink baseband signals.



Manages the entire base station by means of operation and maintenance (OM) and signaling message processing.



Provides an OM channel towards the local maintenance terminal (LMT) or eOSS



Provides clock ports for clock synchronization, alarm monitoring ports for environment monitoring, and a Universal Serial Bus (USB) port for commissioning using a USB storage device

1.

Exterior of the eBBU530

The eBBU530 has a compact case structure measuring 19 inch wide and 2 U high. Figure 2-1shows the exterior of the eBBU530. Issue 01 (2012-09-30)


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Figure 2-1 Exterior of the eBBU530

2.

Boards of the eBBU530

The eBBU530 is configured with the following mandatory boards and modules: 

LTE main processing and transmission unit (LMPT): Manages the entire E-UTRANNodeB (eNodeB) in terms of OM, processes signaling, and provides clock signals for theeBBU530.



LTE baseband processing unit (LBBP): Processes baseband signals and CPRI signals.



Fan unit (FAN): Controls the rotation of fans, checks the temperature of the fan module,and performs heat dissipation for the BBU.



Universal power and environment interface unit (UPEU): Converts -48 V DC power into +12 V DC, and provides ports for transmission of two RS485 signal inputs and eight Boolean signal inputs.

Figure2-2 shows the panel of a eBBU530 Figure 2-2 The panel of a eBBU530

Note: 



3.

If an E1/T1 port is required, the eBBU530 must be configured with a universal transmission processing unit (UTRP). Otherwise, the UTRP is unnecessary. To obtain timing signals from 1 pulse per second (PPS) and time of day (TOD) clocks, the eBBU530 must be configured with a universal satellite clock unit (USCU). Otherwise, the USCU is unnecessary.

Ports on the eBBU530

Table 2-1 describes the primary ports on the boards of the eBBU530.

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Table 2-1 the ports on eBBU530

Board or module

Port

Quantity Connector

Function

LMPT

FE/GE optical port

2

SFP

Transmitting data on the S1 and X2 interfaces

FE/GE electrical port

2

RJ45

Transmitting data on the S1 and X2 interfaces

USB port

1

USB

Loading software

TST port

1

USB

Testing

Commissioning Ethernet port

1

RJ45

Local maintenance

GPS antenna port

1

SMA

Connect to GPS antenna

LBBP

CPRI port

6

SFP

Interface between the eBBU530 and RRU

UPEU

Power port

1

3V3

Input for -48V DC

MON0

1

RJ45

MON1

1

RJ45

Transmitting RS485 monitoring signals and connecting to external monitoring devices

E×T-ALM0

1

RJ45

E×T-ALM1

1

RJ45

UTRP

E1 or T1 port

2

DB26

ransmitting 8 E1s/T1s;configured only when E1/T1 ports are required

USCU

TOD port

2

RJ45

Receiving or transmitting 1PPS and TOD signals

M-1 PPS port

1

SMA

Receiving 1PPS signals from the M1000

Transmitting dry contact signals and connecting to external alarm devices.

2.2.2 RRU RRU is a remote radio unit. One or more RRU constitute the radio frequency (RF) part of a distributed base station. RRU can be installed on a pole, wall, or stand. It can also be installed close to antennas to shorten the feeder length, reduce feeder loss, and improve system coverage. RRU provide the functions such as modulate and demodulate baseband signals and RF signals, process data, amplify power and detect standing waves Issue 01 (2012-09-30)


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1.

RRU Exterior of RRU

Figure 2-3 shows the exterior of RRU3232. Figure 2-4 shows the exterior of RRU3253. Figure 2-3 Exterior of

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RRU3232


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Figure 2-4 Exterior of RRU3253

2.

Ports on RRU

RRU has a modular structure. Its external ports are located at the bottom of the module and in the cabling cavity. Table2-2 describe the ports on RRU3232. Table2-3 describe the ports on RRU3253. Table 2-2 Ports on RRU3232

Port

Connector

Quantity

Function

CPRT Port

DLC

2

Connected to BBU

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Port

Connector

Quantity

Function

RF port

Type N

4

Connected to antenna

Ground port

OT

2

Ground protection

Power supply port

Easy power receptacle (pressfit type)

2

Receiving – 48 V DC power

RET port

DB9

1

Connected to RCU

Ports on RRU3253 Include following ports： 

2 IR optical ports ，used to transmit data, clock signal and s ynchronization signal.



8 type N ports, used to connected to antenna.



1 type N port, used to calibrate.



1 power supply port, used to connected to external – 48 V DC power supplier.



1 external monitoring port，used to get alarms and state signal from external device and manage the external device through RS485 port.

2.3 Auxiliary Devices Notes: Both the APM30H and TMC11H are of two versions: Ver.B and Ver.C. If the cabinet version is not specified, the description is applicable to the cabinet of either version. If the cabinet version is specified, the description is applicable only to the cabinet of that version.

2.3.1 Advanced Power Module(APM) 30H APM30H has two version, Ver.B and Ver.C. The APM30H Ver.B and Ver.C have the same exterior, but the APM30H Ver.C is improved in terms of heat dissipation and power supply capability. The APM30H is a power system for outdoor applications. It provides distributed eNodeBs with power supply and backup batteries for outdoor scenarios. It also provides space for the eBBU530 and customer equipment to facilitate fast network deployment. The APM30H is compact and lightweight, and can be installed on the pole or ground. Figure 2-5 shows the interior of the APM30H.

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Figure 2-5 Interior of the APM30H

Note: 

The power supply unit (PSU) convertes +24 V DC, 110 V AC, or 220 V AC power into -48 V DC power.



The power monitoring unit (PMU) manages the power system, monitors the power distribution, and reports alarms (if any) for the eNodeB

2.3.2 Transmission Cabinet(TMC11H) TMC11H has two version, Ver.B and Ver.C. The TMC11H Ver.B and Ver.C have the same exterior, but the TMC11H Ver.C is improved in terms of heat dissipation and power supply capability. When more space is required for transmission equipment, the TMC11H can be added. The TMC11H provides installation space for the eBBU530 and customer equipment in outdoor scenarios. The TMC11H is compact, lightweight, and easy to transport. The TMC11H supports heat dissipation using fans. Figure 2-6 shows the interior of the TMC11H.

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Figure 2-6 Interior of the TMC11H

Note: A direct current distribution unit (DCDU) supplies DC power to all components in the cabinet.

2.3.3 Integrated Battery Backup System(IBBS200D/IBBS200T) When power backup of long duration is required, the IBBS200D or IBBS200T can be added. The IBBS200D or IBBS200T, applicable to outdoor scenarios, provides a maximum of – 48 V DC 184 Ah backup power by using storage battery packs. The IBBS200D and IBBS200T are compact, lightweight, and easy to transport. The IBBS200D and IBBS200T dissipate heat using the direct cooler or thermoelectric cooling unit (TEC). Figure 2-7 shows the interiors of the IBBS200D and IBBS200T. Figure 2-7 Interiors of the IBBS200D and IBB200T

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eWBB TDD 3.0 DBS3900 Product Description Note: As high temperature greatly affects the lifecycle of the storage batteries, the IBBS200T, which is more heat-tolerant, is recommended in high-temperature areas and the IBBS200D can be used in other areas.

2.3.4 Indoor Mini Box(IMB03) If an indoor site for the DBS3900 has an AC or – 48 V DC power supply, an IMB03 can be used. It provides a 3 U space for installing the eBBU530 and power equipment. The power equipment may be AC/DC power equipment, DCDU, or others. The IMB03 is characterized by its flexible installation, satisfactory heat dissipation, and easy cabling. It can be supplied with DC or AC power. Figure 2-8 shows the interior of the IMB03. Figure 2-8 Interior of the IMB03

2.3.5 Outdoor Mini Box(OMB) The OMB is also called the outdoor BBU subrack. If an outdoor site for the DBS3900 has an AC or -48 V DC power supply, an OMB can be used. It provides a 3 U space for installing the eBBU530 and other equipment. Other equipment may be AC/DC power equipment, DCDU, or transmission equipment. The OMB has the following characteristics:    

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Easy cabling Protection against water, dust, and sunlight Proper grounding Easy installation and maintenance


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The OMB can be supplied with DC or AC power. Figure 2-9 shows the interior of the OMB. Figure 2-9 Interior of the OMB.

2.4 Typical Installation Scenarios for the DBS3900 The DBS3900 fully addresses operators' concern over site acquisition and shortens network deployment time. It enables operators to efficiently deploy a LTE network with a low Total Cost of Ownership (TCO) by minimizing the investment in electricity, space, and manpower. The DBS3900 consists of the eBBU530 and RRUs. The eBBU530 is characterized by its small footprint, easy installation, and low power consumption. Therefore, the eBBU530 can be easily installed in a spare space at an existing site. Each RRU is also compact and light. It can be installed close to an antenna to reduce feeder loss and to improve system coverage. Typical installation scenarios for the DBS3900 are classified into outdoor and indoor installation scenarios, as shown in Figure 2-10 and Figure 2-11.

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Figure 2-10 Typical outdoor installation scenario for the DBS3900

If the DBS3900 is deployed outdoors, the eBBU530 can be installed in an APM30H, TMC11H, or OMB. The APM30H, TMC11H, or OMB provides installation space and outdoor protection for the eBBU530, and supplies – 48 V DC power to the eBBU530 and RRUs. Figure 2-11 Typical indoor installation scenario for the DBS3900

If the DBS3900 is deployed indoors, the BBU can be installed in a 19-inch cabinet or rack, in an Indoor Centralized Rack (ICR), in an Indoor Mini B ox (IMB03), or on the wall. The BBU can share the power supply system and transport system in the existing network. The ICR provides a baseband rack for installing the eBBU530 and an RF rack for installing a maximum of six R RUs in a centralized manner.

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3

Typical Configurations

Table 3-1 describes the typical configurations of the DBS3900, Table 3-1 Typical configurations of the DBS3900

Configuration

MIMO

Quantity of LBBP

Quantity of RRU

3 × 10MHz

2 × 2 MIMO

1 LBBP

3 RRU

3 × 10MHz

4 × 2 MIMO

1 LBBP

3 RRU

3 × 20MHz

2 × 2 MIMO

1 LBBP

3 RRU

3 × 20MHz

4 × 2 MIMO

3 LBBP

3 RRU

3 × 10MHz

4T4R Beamforming

1 LBBP

3 RRU

3 × 20MHz

4T4R Beamforming

3 LBBP

3 RRU

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4

Technical Specifications

4.1 Capacity Specifications Table 4-1 Capacity Specifications

Item

Specification

Maximum cell number

3 Cells(4T4R 20MHz/2T2R 20MHz/4T4R 10MHz) 6 Cells (4T4R 5MHz/2T2R 5MHz/2T2R 10MHz)

Maximum throughput per cell(20MHz)

Downlink rate at the Media Access Control (MAC) layer :131 Mbit/s

Maximum throughput per eNodeB

Downlink: 450 Mbit/s

Maximum number of UEs in RRC-connected mode per eNodeB

2000

Maximum number of data radio bearer(DRB) per UE

8

Uplink: 300Mbit/s

4.2 Device Specifications Table 4-2 Device Specifications of the eBBU530

Item

Specification

Dimensions (H × W × D)

86 mm ×442 mm ×310 mm

Weight

≤ 12 kg (In full configuration)

Input power

-48 V DC（-38.4 V DC ～ -57 V DC）

Temperature

20°C ～ +55°C

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Item

Specification

Relative humidity

5% RH ～ 95% RH

Atmospheric pressure

70 kPa ～ 106 kPa

Ingress protection rating

IP20

CPRI port

6 CPRI ports per LBBP Standard CPRI4.1 port, compatible with CPR I3.0

Transmission port



2 FE/GE electrical port



Or 2 FE/GE optical port



Or 1 FE/GE electrical port and 1 FE/GE optical port

Table 4-3 Device specifications of the RRU3232(4T4R)

Item

Specification

Frequency band and bandwidth

Frequency band

Bandwidth

1.8GHz:

5MHz、10MHz or 20MHz

1785 MHz ～1805 MHz 1755 MHz ～1920 MHz(Support by changing filter) Dimensions(H×W×D)

480mm×270mm×140mm

Weight

18.5kg

Input power

-48V DC， voltage range：-36V DC ～ -57V DC

Maximum output power

4 × 20W

Temperature

-40℃ ～+55℃

Relative humidity

5% RH ～ 100% RH


70 kPa ～ 106 kPa


IP65

Table 4-4 Device specifications of RRU3252(8T8R)

Item Frequency bandwidth

Specification band

and

Frequency band

Bandwidth

1.4GHz:

5MHz、10MHz or 20MHz

1447MHz～1467MHz Dimensions(H×W×D)

545mm×300mm×130mm

Weight

24kg

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Item

Specification

Input power

-48V DC， voltage range：-36V DC ～ -57V DC

Maximum output power

4 × 8W

Temperature

-40℃ ～+55℃

Relative humidity

5% RH ～ 100% RH


70 kPa ～ 106 kPa


IP65

4.3 Input power and clock synchronization specifications Table 4-5 Input power and clock synchronization specifications

Item

Specification

Input power

-48V DC( -38.4V ~ -57V)

Clock synchronization

GPS、IEEE1588V2、TOD+1PPS

4.4 Reliability Specifications Table 4-6 Reliability specifications

Item

Specification

system availability

≥99.999%

Mean time between failures

≥155,000 hours

Mean time to repair

≤1hour

System restarting time

<450s

4.5 Compliance Standard Table 4-7 Compliance standard

Item Issue 01 (2012-09-30)

Standard Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

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Storage

ETSI EN300019-1-1 V2.1.4 (2003-04) class1.2 ”Weatherprotected, not temperature-controlled storage locations”

Transportation

ETSI EN300019-1-2 V2.1.4 (2003-04) class 2.3 ”Public transportation”

Anti-seismic performance

Interim Provisions for Test of Anti-seismic Performances of Telecommunications Equipment (Telecommunication Industry Standard of the People's Republic of China)

Electromagnetic Compatibility (EMC)

The eNodeB meets the Electromagnetic Compatibility (EMC) requirements and complies with the following standards:： R&TTE Directive 1999/5/EC R&TTE Directive 89/336/EEC 3GPP TS 36.113 ETSI EN 301489-1/23 ETSI EN 301908-1 V2.2.1 (2003-10) ITU-R SM.329-10 The eNodeB is Conformite Europeenne (CE) certified.

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5

Abbreviation

Table 5-1 Abbreviation

Abbreviation Full name ANR

Automatic Neighboring Relation

APM

Advanced Power Module

BBU

BaseBand control Unit

CAPEX

Capital Expenditure

CDMA

Code Division Multiple Access

CPRI

Common Public Radio Interface

DBS

Distribution Base Station

E-UTRAN

Evolved UMTS Terrestrial Radio Access Network

FAN

Fan Unit

FE

Fast Ethernet

GE

Gigabit Ethernet

GPS

Global Positioning System

GSM

Global System for Mobile communications

IBBS

Integrated Battery Backup System

ICIC

Inter-Cell Interference Coordination

IP

Internet Protocol

LMT

Local Maintenance Terminal

LTE

Long Term Evolution

MIMO

Multiple Input Multiple Output

MRO

Mobility Robust Optimization

MTBF

Mean Time Between Failures

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Abbreviation Full name MTTR

Mean Time To Recovery

OM

Operation and Maintenance

OPEX

Operating Expenditure

RGPS

Remote Global Positioning System

RCU

Remote Control Unit

RET

Remote Electrical Ttilt

RRM

Radio Resource Management

RRU

Remote Radio Unit

TCO

Total Cost of Ownership

TMC

Transmission Cabinet

UMTS

Universal Mobile Telecommunications System

UPEU

Universal Power and Environment Interface Unit

USB

Universal Serial Bus

UTRA

UMTS Terrestrial Radio Access (ETSI)

UTRAN

UMTS Terrestrial Radio Access Network

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DBS3900.pdf

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